I followed the 3D Exchange tutorial in opening a door, and I moved the Pivot with no problmes, but I just need to clarify a couple of points:

1. When The door opens, the frame moves too, but in 3d Exchange, I couldn't find a way to separate the door and the frame.  Have I overlooked something?

2. The wall behind the door is still there, so do I need to set a transparent block to the area of the wall where the door is, or do I build a wall in3  sections around the door, so there is nothing there when the door is opened.

Thanks in anticipation for your ideas.